Commit Graph

165 Commits

Author SHA1 Message Date
thorpej a180cee23b Pool deals fairly well with physical memory shortage, but it doesn't
deal with shortages of the VM maps where the backing pages are mapped
(usually kmem_map).  Try to deal with this:

* Group all information about the backend allocator for a pool in a
  separate structure.  The pool references this structure, rather than
  the individual fields.
* Change the pool_init() API accordingly, and adjust all callers.
* Link all pools using the same backend allocator on a list.
* The backend allocator is responsible for waiting for physical memory
  to become available, but will still fail if it cannot callocate KVA
  space for the pages.  If this happens, carefully drain all pools using
  the same backend allocator, so that some KVA space can be freed.
* Change pool_reclaim() to indicate if it actually succeeded in freeing
  some pages, and use that information to make draining easier and more
  efficient.
* Get rid of PR_URGENT.  There was only one use of it, and it could be
  dealt with by the caller.

From art@openbsd.org.
2002-03-08 20:48:27 +00:00
tsutsui 3c8b0446fe Change type of dumpmag to u_int32_t since it is actually
a 32bit unsigned magic number.
As per discussion on tech-kern, and fixes port-sparc64/11949.
2002-03-06 13:10:18 +00:00
wiz 92a8da0e0d 'securyty' looks nice. Sadly, it's wrong. 2002-03-05 13:59:13 +00:00
simonb 6f0fb25121 Don't need to declare phys_map - it is declared in <uvm/uvm_extern.h>. 2002-03-04 02:43:22 +00:00
simonb 4324f37586 Use "#define<tab>". 2002-02-28 03:17:23 +00:00
christos e8116a8f5b - Use DEV_ constants, instead of documenting the numbers!
- Delete cdev_decl(mm); where appropriate, and other hand-crufting [hi powerpc!]
2002-02-27 01:20:51 +00:00
wiz 37e458fa45 strategy should have an 'r'. Inspired by similar change in OpenBSD. 2002-02-19 17:09:40 +00:00
chs b744097a5f allow writing to write-only mappings. fixes PR 3493. 2002-02-14 07:08:02 +00:00
jdolecek 6d265bd894 add options PIPE_SOCKETPAIR to individual kernel configs
the option is commented out on everything but kernels I was able
to recognize as INSTALL-like or ones for small memory machines
2002-01-27 13:23:08 +00:00
jdolecek ff8305bbac Switch to MI dev/md_root.c for archs which don't have any special
memory disk hooks (i.e. everything except atari).
2002-01-21 21:56:57 +00:00
manu eb2b0c03da Added clockctl 2002-01-12 13:22:23 +00:00
chs 9451559ef4 pmap_page_protect(VM_PROT_NONE) must remove all mappings in the PV list,
even if they are wired.  we need to be able to remove all mappings to
pages that are being freed due to (eg.) file truncation.
2002-01-02 00:51:33 +00:00
martin b506d6e135 Add PPPoE to all generic kernels that should be able to use it.
XXX TODO: do this for INSTALL kernels too, add sysinst support and make the
XXX needed binaries available on the ramdisk root fs.
2001-12-28 12:21:52 +00:00
chs c356097d58 use ELF instead of a.out symbols now. 2001-12-24 17:57:19 +00:00
chs e5b36c6564 typo in last. 2001-12-24 17:56:59 +00:00
chs c5fffebac0 needed for ELF, just include the m68k common header. 2001-12-24 17:56:31 +00:00
chs 450ff86b66 convert luna68k to ELF. ok'd by nisimura. 2001-12-22 23:38:20 +00:00
tsutsui 20d126a5b4 Fix comments for ref-count of PT pages. 2001-12-16 03:53:21 +00:00
gmcgarry bdd225baa1 Add a blurb to the top of all GENERIC files. This serves three purposes:
- to clarify some terminology
- to clarify the intention of the GENERIC file
- to cross-reference some useful man pages
2001-12-14 05:34:45 +00:00
chs 2dfd15933e change the reference-counting of PT pages to start from zero instead of
one, so that we don't mess up the global count of wired pages by having
the page's wire_count be non-zero when we free the page.
pointed out by Michael Hitch.
2001-12-13 04:39:50 +00:00
atatat b45c51b1fc Roll the rest of the ports over to the new MI kernel build machinery.
Any problems reported by testers have been fixed, and massive
cross-compiling of kernels has shown that any problems that remain
with actually building kernels are not related to this.
2001-12-09 05:00:40 +00:00
isaki 26b511b905 fix typo s/68551/68851/ in a comment. 2001-11-24 06:53:16 +00:00
atatat 2bf2c362fb The bridge(4) pseudo-device no longer requires the port to
__HAVE_GENERIC_SOFT_INTERRUPTS, so add it back to all GENERIC configs.
2001-11-23 05:00:22 +00:00
lukem 03aef4723c cleanup:
options SPACE TAB
	makeoptions TAB
	psuedo-device TAB
	remove trailing whitespace
	replace multiple spaces -> tabs
	options "FOO" -> options FOO
	options "FOO=bar" -> options FOO=bar
	options "FOO=\"bar\"" -> options FOO="\"bar\""
2001-11-20 12:56:17 +00:00
chs 621a9ec9ea allocate and free page table pages explicitly instead of abusing
uvm_fault_wire().  this allows us to make pt_map non-pageable,
but we need to be careful in pmap_remove() not to attempt to
reference PTEs after the PTP has been freed.
2001-11-19 06:40:11 +00:00
soren 662f877587 MAXSLP is defined to be a machine-independent scheduling parameter,
so move it into sys/param.h.
2001-11-15 18:06:11 +00:00
jmc 6d536163de Change defaults for kernel compiles. Default all to USETOOLS?=no and have
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.

Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.
2001-10-26 06:45:33 +00:00
thorpej ba217c4196 Set MACHINE_ARCH explicitly in Makefiles for which it is constant.
Also, since config(8) now explcitly sets MACHINE, there is no need
to do it here in the Makefile.
2001-10-23 19:26:41 +00:00
chs 15982c7311 fix typo in pmap_kremove() which was invalidating the wrong TLB entry.
from Hiroki Tanikawa in PR 14099.
2001-09-29 22:00:29 +00:00
chris 0e7661f023 Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.
2001-09-10 21:19:08 +00:00
atatat 5f25c01eff Comment out bridge pseudo devices from ports that don't
__HAVE_GENERIC_SOFT_INTERRUPTS.  bridge(4) doesn't compile there.
2001-09-01 23:08:40 +00:00
atatat 97c67a9bae Add bridge pseudo devices to GENERIC configs 2001-09-01 21:52:23 +00:00
chs d0e2aef09a add register prefixes. no change in generated .o files. 2001-08-25 23:08:39 +00:00
chs 753f885263 add register prefixes in asms. 2001-08-25 21:14:44 +00:00
chs db7d3946ac add register prefixes. no change in generated .o file. 2001-08-25 21:08:02 +00:00
chs c489e9bff4 add missing pmap_update(). 2001-08-19 18:09:20 +00:00
chs dda1ba2993 implement pmap_k{enter_pa,remove}() correctly.
remove various checks for impossible conditions.
other misc cleanup.
tested by tohru.
2001-08-17 06:39:53 +00:00
chs 6bc422a7ee use pmap_k* in pagemove() (ie. for buffer cache pages)
and in vmapbuf() and vunmapbuf() (since there's no VAC on this platform).
2001-08-04 07:44:52 +00:00
wiz a9356936b4 seperate -> separate 2001-07-22 13:33:58 +00:00
abs 01b024cd5b Standardise TCP_COMPAT_42 as commented out, grouped with other COMPAT options,
and with the comment '4.2BSD TCP/IP bug compat. Not recommended'
Add commented out 'TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG'
(All hail amiga and atari which make some attempt to automate the
multiplicity of config files...)
2001-07-08 16:32:12 +00:00
darcy ce0ec1e208 Add System V semaphore resource limits to each GENERIC file that has an
option for System V semaphores.  It appears that there are no overrides
in the code and each file has the following added.

 options    SYSVSEM     # System V semaphores
+#options   SEMMNI=10   # number of semaphore identifiers
+#options   SEMMNS=60   # number of semaphores in system
+#options   SEMUME=10   # max number of undo entries per process
+#options   SEMMNU=30   # number of undo structures in system
 options    SYSVSHM     # System V shared memory

If anyone thinks that this is incorrect for any of these files, please
correct it.

Note - the i386 port was not forgotten.  It was done separately.
2001-06-30 11:00:31 +00:00
wiz 40ac848024 Fix various misspellings of compatible/compatibility. 2001-06-11 01:50:48 +00:00
chs 821ec03ed9 replace vm_map{,_entry}_t with struct vm_map{,_entry} *. 2001-06-02 18:09:08 +00:00
lukem d84d2c6c85 add missing #include "opt_kgdb.h" 2001-05-30 15:24:23 +00:00
mrg 67afbd6270 use _KERNEL_OPT 2001-05-30 11:57:16 +00:00
mrg 3783ca5d30 define _KERNEL_OPT as well as _KERNEL. we will use this in the future to
get kernel "opt_foo.h" headers, rather than _KERNEL && !_LKM.
2001-05-29 02:20:20 +00:00
chs e44e9dec8a replace vm_page_t with struct vm_page *. 2001-05-26 21:27:02 +00:00
chs 118ddca24a replace {simple_,}lock{_data,}_t with struct {simple,}lock {,*}. 2001-05-26 16:32:40 +00:00
scw 2963ff5c58 Add `l_poll' to `struct linesw' and provide an xxxpoll() entry point
in each tty driver to indirect through it.

This allows tty line-disciplines to handle poll(2) system calls.
2001-05-02 10:32:08 +00:00
thorpej cf67ac7122 Per discussion w/ chuck and chuck, restructure the md page stuff
to use a structure called "vm_page_md", and use __HAVE_VM_PAGE_MD
and __HAVE_PMAP_PHYSSEG.
2001-05-01 02:19:13 +00:00